Chickenpox is a highly contagious viral infection that causes a skin rash, starting with red bumps and progressing to blisters and scabs. It may also cause symptoms such as fever, headache, and fatigue.
The disease typically affects children, but anyone who is not immune to the virus can get it.
While most cases of chickenpox are mild and cause no lasting significant problems, in some cases the disease is more severe and leads to dangerous complications.
Severe chickenpox is more likely to affect adults, infants, teenagers, pregnant women, and people with a weakened immune system (due to a health condition or medical treatment).
While the varicella vaccine is recommended for most children and some adults, there are certain groups of people who shouldn’t receive it.
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